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Explain that ? converts the error type using From#60924

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estebank:try-msg
May 19, 2019
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Explain that ? converts the error type using From#60924
bors merged 1 commit intorust-lang:masterfrom
estebank:try-msg

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@estebank
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@estebank estebank commented May 17, 2019

Fix #60917.

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rust-highfive commented May 17, 2019

r? @petrochenkov

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label May 17, 2019
@estebank estebank mentioned this pull request May 17, 2019
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cuviper commented May 17, 2019

FWIW, I'm experimenting with using Into instead in #60796, although it doesn't look promising. I'm not sure if type inference can be improved to avoid massive breaking changes.

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estebank commented May 17, 2019 •
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@cuviper the regression on error messages should make it obvious when hacks like this are in use. I believe the weird error you note in that PR is partly one of these cases.

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Awesome! Thank you Esteban! ❤️

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Centril commented May 17, 2019

I'm not sure if type inference can be improved to avoid massive breaking changes.

Scheduled a try build for crater.

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petrochenkov commented May 17, 2019

@bors r+ rollup

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bors commented May 17, 2019

📌 Commit 65b7319 has been approved by petrochenkov

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels May 17, 2019
Centril added a commit to Centril/rust that referenced this pull request May 19, 2019
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Rollup merge of rust-lang#60924 - estebank:try-msg, r=petrochenkov
80d372f 
Explain that ? converts the error type using From

Fix rust-lang#60917.
@Centril Centril mentioned this pull request May 19, 2019
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bors added a commit that referenced this pull request May 19, 2019
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Auto merge of #60949 - Centril:rollup-f918e1v, r=Centril
26ab324 
Rollup of 8 pull requests

Successful merges:

 - #60370 (Mark core::alloc::Layout::from_size_align_unchecked const)
 - #60678 (Stabilize vecdeque_rotate)
 - #60924 (Explain that ? converts the error type using From)
 - #60931 (Use iter() for iterating arrays by slice)
 - #60934 (Declare DefIndex with the newtype_index macro)
 - #60943 (fix copy-paste typo in docs for ptr::read_volatile)
 - #60945 (Simplify BufRead::fill_buf doc example using NLL)
 - #60947 (Fix typos in docs of GlobalAlloc)

Failed merges:

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bors commented May 19, 2019

☔ The latest upstream changes (presumably #60949) made this pull request unmergeable. Please resolve the merge conflicts.

@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels May 19, 2019
@bors bors merged commit 65b7319 into rust-lang:master May 19, 2019
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sunjay commented May 19, 2019

Bors was able to merge this even though it was unmergeable?

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tesuji commented May 19, 2019

The rollup #60949 contains this PR.

@estebank estebank deleted the try-msg branch November 9, 2023 05:19
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Error message for question mark operator should message conversion

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@estebank @rust-highfive @cuviper @Centril @petrochenkov @bors @sunjay @tesuji